Fireplace heater



W. D. HARPER.

FIREPLACE HEATER. APPLICATION FILED FEB. 6, 1,922.

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FIREPLACE HEATER.

APPLICATION FILED FEB. e, 1922.

Patented Oct. l?,

l2 SHEETS SHEET 2.

W W w W W W W ww W W STATES @tilliiio WALTER ID. HARPER, OF FLORENCE, SOUTH CAROLINA.

FIREPLACE HEATER.

Application iled February 6, 1922. Serial No. 534,501.

T0 all fui/10m t may concern.:

Be it known that L'WALTER D. HARPER, a citizen of the United States, residing at Florence, in the county of Florence and State of South Carolina, have invented certain new and useful improvements in Fireplace Heaters, of which the following is a specification.

rllhis invention relatesv to a sectional i'ireplace heater or boiler' which may be placed in the ordinary fireplace of a dwelling to conserve the heat from-the gases of combustion which areordinarilyl wasted by the passage of the gases directly into the chimney. l/Vith a heater constructed in accordance with my invention, the greater part of this heat is absorbedy by .the ywater in the heater'which may then be circulated through radiators to heat other parts of the dwelling.

The heater is composed of hollow metal sections which may be readily assembledr in the desired number to iill the fireplace, and these sections are so designed as to form a tortuous iue through which the gases must flow in passing to the chimney. The heater is also provided with a front frame and doors by which it may be entirely enclosed in the lireplace, or these doors .may be swung open to permit the direct radiation of heat into `the room. In addition to the damper for admitting air under the grate of the heater, l provide means whereby lair, in

` regulated volume, may be fed into the space above the grate to promote combustion of the gases.

In the accompanying drawing,

Fig. 1 is a front elevation of the heater arranged within a fireplace;

Fig. 2 is a central vertical section through the same; r

Fig;` 3 .is a section on the line 3--3 of Fig. 2;

Fig. 4l is a section on the linel-Llof Fig. 2; and, l

Fig. 5 is a perspective view on a small scale of one of the flue sections of the heater.

Referring to the drawing, a represents a chimney having a fireplace I), in which is arranged a heater of my invention rllhe heater is enclosed within the fireplace by a metal frame or casing c, having` a pair of outwardly swinging doors l, and having a grating 2 beneath the doors in which isy arranged a sliding damper 3. The' heater proper comprises two fiat hollow sidesections d-CZQ between which are arranged a plurality of intermediate hollow sections c, c, etc., which may, for convenience, be termed flue sections. The flue sections are similar in general form, but vary in width and number, to suit the width of the fireplace. One of the flue sections, preferably the central one e2, is provided at the top with va threaded outlet nipple a, and at the bottom with a threaded inlet nipple 5, whereby a radiator system may be connected to the water sections of the heater. This section is also provided with a clean-out passageway 6, leading from the smoke passageway of the section.

rllhe side sections, which are in the form Aof hollow slabs, extend from the front casing c to the back wall of the replace and from the basea to approximately the top of the fireplace. The iue 'sections,'which are connected to one another-and to the side sections as hereinafter described, have the same height and the same depth across the top,

from front to rear, as the side sections', thel major portion of each flue section having less depth and being at the rear of the grate g. As shown in Figs. 3 and 5, each flue section comprises a front water-leg 7', of less height than the heater, which, when the heater is assembled, extends upwardly at the rear of the grate g and the combustion space h, a rear water leg S, spaced from the front legand extending upwardly for the full height of the heater, atop portion or compartment 9 which extends forwardlyy from the rear leg to the casing c, and an intermediate water leg 10, which extends downwardly from `the top compartment between the front and rear water legs. It will be seen that in the assembled heater the upper compartments form a top for the heater and the water legs form a flue l2, which extends I several sections togetherfand lit will be eviintermediate legs and in contact with the inner Wall of the rear legs and the top compartment, and most 'of the hefat in the gases will be taken up by the Water in the heater beliore the gases pass into the chimney.

The sections of the heater' are connected together' by several series ot alined nipples.

vThus, in the lower parts of the Walls ot the several sections are alined threaded 4'openings 13, and' fitting' inthe openings in. the adj a-l jcent Wallis of the sections 4are threaded iupJ v'ples 121:. Theolpei'nngs 1-3 in the outer Walls of the side sections are closed by removable threaded 'plugs 15'. These nipples form comln'itinicating passage'iva'ys between 'the water spaces in 'the base portions of the vseveral sections. Similarly, the Water spaces of the legs 10 are connected together at their lo'i'ver ends and 'to the 'side 'sections by nipples 1h, the openings inthe outer Walls of the side sections in 'line with these latter nipples being closed by plugs 17. The upper ends of the Water legs 7 are con'iiected together/and to the side ysections by nipples 1'8,fand the upper ends of the Water legs S `are Aconnected together and to the side sections by nipples 19 the openings in the outer Wallsjol the side sections, opposite the nipples 18, being closed `by plugs (not shown), and the fopenings inthe Walls ci ythe side sections, opposite the nipples 19, being c'losedby fplugs, shown at 20.- These several 'sets' ci nipples hold 'the dent that the heater sections maybe assembled by securing them successively together 'a part adapted to'extendthrough the casing '0. shown in Fig.

through thc side section and rearwardly along' its inner wal] 'to the adjacent line sccvtion. Each flue section has on the `forward Wall oi' the leg 7, a transverse 'conduit section 2,1@ and when the heater is assembled these conduit sections meet `end to endl and connect with ythe conduitsY 21 on "the side sections, -thus 'forming a continuous conduit. This conduit is provided 'With a vplurality oil spaced peroratio'ns -211 kon its underside, through which air may passinto the com'- bustionspaceh. Damp'ers 22 are provided at the 'in-letse'nds of lth'eco'nduit for regulating'theinflow ofair. It Will be evident that when a 'hre is burningin the grate, the draft through the heater Will "clause lair to loW This conduit feXtends.

tion,l 'front and, rear e'faterflegsv extending rvupwardly from the base portion, ar ,top` :por-

through the conduit 21 into the heater and this air will vcause more complete combustion of the gases. f

The grate may be of any `desired form. As shown, the gi'ateg, which is of basket "t'orm, is supported'by lugs 23 on the 'liront iframe and across bar 24 Which extends benot in use, the 'doors'fl will be lett closed.

When the heater isY in use, the doors may lbe lett open to permit the heat to 'be radiated 'directly Tinto the room, or may be `closed or partly Vclosed to'regulate the temperature in the room. Air :may be admittedthrou-gh the lower damper and also as desired through the conduit 21 kto promote combustion.` As the heat ymust ytravel through the `ei'rtende'd flue sp'a'cein the heater7 a great deal of :the heat will he absorbed Aby lthe water, and since-the sections are soconnedted .that the Water may circulate through the sections and rise as it becomes kheated to the 'outlet nipple 4L, the heater may be used `to heat radiators at distant .points fby `connecting the radiator pipes to the `inlet and outlet nipples ot the radiator. It will be ynoted that thefvvater as it becomes heated can rise li-n L'the 4rear Vlegs of each section to the top of the heater; :also it may rise in the front -leg to the nipples 18 and 'then flow into the side sections and from the upper parts of the latter, through the nipples 19 to the outlet t, and similarly, `theivater which 'becomes heated inthe intermediate legs 1O`Will -rlse and. flow to the side koutlet, cooler .Water passing' from the :side sections rthrough vthe nipple 16 to replace the Water flowing' vup- Ward in the legsl 10. v

What I claim is: i f

1. A fireplace gheater comprising.hollow side sections and intermediate. hollow "line sections having communicating passas gewaysz` each flue section havinga b-aseportion, front and rear Water-legs extending upwardly from the base portion, a top portion entending forwardly from the rear leg over said lfront leg, and an intermediate Water-#leg deh pending from said `to-p por'tion'between said front and rear legs. y I

2.v A fireplace heater comprising lhollow side sections and intermediate hollow flue -sections,each flue section having a baseportion eX-tending forwardly-from the rear'leg over said vfront leg, an intermediate Water'- leg depending from 'said top portion between said front `and rear legs, and nipples connecting, respectively, the base portions and the corresponding leg portions of the iiue sections together and to the side sec-tions'.

3. A fireplace heater comprising hollow side sect-ions and intermediate hollowr flue sections, each flue section having a base portion, front and 'rear water-legs extending upwardly from the base portion, a top portion extending forwardly from the rear leg over said front leg, an intermediate water-leg dependin@` from said top portion betwee-n said front and rear legs, and nipples connecting, respectively, the base portions, the upper ends of the front and rear legs and the lower ends ol'l the intermediate legs together and to the side sections.

4t. A fireplace heater comprising hollow side sections and intermediate hollow flue sections having communicating passageways, each iiue section having a base portion, front and rear water-legs extending upwardly from the base portion, a top portion extending forwardly 'from the rear leg over said front leg and an intermediate water-leg depending from said top portion between said front and rear legs and forming therewith a downwardly and thence upwardly extending flue, said top `portions being restricted in width between the rear and intermediate legs to provide outlets 'for said flue. v

5. 'A fireplace lieatercomprising hollow side sections andr intermediate hollow iiuesections having communicating passageways, each flue section having a base portion, front and rear water-legs `extending upwardly from the base portion, a top portion extending forwardly from the rear leg over said Lfront leg and an intermediate waterleg depending from said top portion betion, front and rear water-legs entending upwardly 'from the base portion, a top portion extending forwardly from the rear leg over said front leg` and an intermediate water-leg depending from said top portion between said front and rear legs and forming n therewith a downwardly and thence upwardly extending ilue, said top portions being restricted in width between the rear and intermediatev legs to provide-outlets for said flue, vand one of said sections having a water inlet in its base portion and a water outlet in its top portion.v

7. A fireplace heater comprising hollow side-sectionsv and intermediate hollow iiue sections having communicating passageways, said `flue sections having front, rear and intermediate water-legs arranged to form a tortuousf'flue, each side section having a perforatedl air conduit on its inner wall and extending to the front of the heater, and said flue sections having perforated conduit sections on their front legs adapted to form continuations of said air conduit in the assembled heater, and a grate below said air conduit. y

In testimony whereof aflix my signature.

wnifrna D. HARPER. 

